<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <table>
            <tr is='my-tr'></tr>
        </table>
    </div>
    <script src="vue.js"></script>
    <script>
        Vue.component('my-tr',{
            template:'<tr><td>第一格</td></tr>'
        })
        new Vue({
            el:'#app'
        })
    </script>
</body>
</html>